Specifications: Supply Voltage(V): 18 Stroke Length (mm): 25 FEATURES AND BENEFITS: With improved battery technology, no memory effect, and minimal self-discharge, the V20's lithium-ion battery is ready to go whenever you want, wherever you need to go, and it keeps your tool running for longer. The powerful, high-power motor generates up to 3000 strokes per minute. Speed control ensures maximum control of the tool in a variety of applications and working with different materials. Tool-free saw blade change ensures easy and quick saw blade changes. The compact and lightweight design helps reduce user fatigue. Recommended 2.0Ah or 4.0Ah battery of the 18V STANLEY® FATMAX® V20 cordless system (sold separately) Part of the new Stanley® Fatmax® V20 18V CORDLESS SYSTEM - POWER ALL YOUR V20 tools with common, new and improved 18V lithium-ion batteries that will allow you to tackle any task with ease. No battery included ** Illustrative photos.